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Round bottom flask with narrouw neck, made of heat resistant borosilicate 3.3 glass. Duran brand.
Wide neck flat bottom flask made of borosilicate 3.3 glass. Simax brand.
More informationsBorosilicate 3.3 glass, without stopper, Duran brand.
More informationsDuran brand, with graduation, made of borosilicate 3.3 glass.
More informations